Compilation fails when embedding files using TH · haskell-flake

Hi, first off, thanks for creating haskell-flake! It got me up and running with Haskell quickly.

I'm trying to deploy a Haskell project to a NixOS server and compilation fails when trying to embed files using template Haskell:

src/Settings.hs:139:23: error: [GHC-87897]
    • Exception when trying to run compile-time code:
        config/settings.yml: withBinaryFile: does not exist (No such file or directory)
      Code: (embedFile configSettingsYml)
    • In the untyped splice: $(embedFile configSettingsYml)
    |
139 | configSettingsYmlBS = $(embedFile configSettingsYml)
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[12 of 54] Compiling TodoBundleName   ( src/TodoBundleName.hs, dist/build/TodoBundleName.o, dist/build/TodoBundleName.dyn_o )
[13 of 54] Compiling TodoName         ( src/TodoName.hs, dist/build/TodoName.o, dist/build/TodoName.dyn_o )
[14 of 54] Compiling TodoStatus       ( src/TodoStatus.hs, dist/build/TodoStatus.o, dist/build/TodoStatus.dyn_o )
[15 of 54] Compiling TransferFeePaidBy ( src/TransferFeePaidBy.hs, dist/build/TransferFeePaidBy.o, dist/build/TransferFeePaidBy.dyn_o )
[16 of 54] Compiling Model            ( src/Model.hs, dist/build/Model.o, dist/build/Model.dyn_o )

src/Model.hs:64:3: error: [GHC-87897]
    • Exception when trying to run compile-time code:
        config/models.persistentmodels: withBinaryFile: does not exist (No such file or directory)
      Code: (persistFileWith
               lowerCaseSettings "config/models.persistentmodels")
    • In the untyped splice:
        $(persistFileWith
            lowerCaseSettings "config/models.persistentmodels")
   |
64 |   $(persistFileWith lowerCaseSettings "config/models.persistentmodels")
   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

The project compiles on my NixOS development machine using the devShell but the error occurs when deploying to a server running NixOS.

The files exist in the project, are checked in to the repo, and our old deployment pipeline using Docker works so I think I've made some mistake when setting it up using haskell-flake.

Do I have to whitelist these files to be part of the build or so? I tried reading up on it but am too new to Nix to understand.

{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/f373ad52f1fa4187abeb7d1ce1056314bcbc9980";
    flake-parts.url = "github:hercules-ci/flake-parts";
    haskell-flake.url = "github:srid/haskell-flake";
  };
  outputs = inputs@{ self, nixpkgs, flake-parts, ... }:
    flake-parts.lib.mkFlake { inherit inputs; } {
      systems = nixpkgs.lib.systems.flakeExposed;
      imports = [ inputs.haskell-flake.flakeModule ];
      perSystem = { self', system, lib, config, pkgs, ... }: {
        haskellProjects.default = {
          basePackages = pkgs.haskell.packages.ghc982;

          # Want to override dependencies?
          # See https://haskell.flake.page/dependency
          settings = {
            slugify.check = false;
            sendgrid-v3.check = false;
            fast-logger.check = false;
          };

          devShell = {
            hlsCheck.enable = false;
          };

          autoWire = [ "packages" "apps" "checks" ]; # Wire all but the devShell
        };

        packages.default = self'.packages.internal-hs;
        # apps.default = self'.apps.internal-hs;

        devShells.default = pkgs.mkShell {
          name = "Haskell devShell";
          inputsFrom = [
            config.haskellProjects.default.outputs.devShell
          ];
          nativeBuildInputs = with pkgs; [
            watchexec
            pcre
            zlib
          ];
        };
      };
    };
}

Stream: haskell-flake

Topic: Compilation fails when embedding files using TH

Jkru (Apr 09 2024 at 15:59):

Srid (Apr 09 2024 at 21:54):

Jkru (Apr 13 2024 at 16:05):